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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 42. Отображено 42.
05-05-2023 дата публикации

Method and device for predicting temperature of cable

Номер: CN116070516A
Автор: ZHANG ZHIQIANG, LI XINHAI, WANG WEIPING, MEI LONGJUN, ZHU YULIN, HE BINGFENG, ZHANG CHEN, LIANG ZHIKANG, MENG CHENXU, LIU WENPING, LIU JUNYU, FU XICHEN, ZHOU HENG, CHAN QIZHONG, DENG XIAOLONG
Принадлежит:

The invention discloses a cable temperature prediction method and device, and the method comprises the steps: obtaining a thermal circuit parameter of a to-be-measured cable and a cable temperature training sample of a cable database, carrying out the calculation of cable core temperature sequence data of the to-be-measured cable according to the thermal circuit parameter, and carrying out the calculation of the cable core temperature sequence data through employing an empirical mode decomposition method and a complete set empirical mode decomposition method, and carrying out stabilization processing on the cable core temperature sequence data to obtain stabilized temperature sequence data, establishing a time sequence combination prediction model based on a cable temperature training sample, inputting the thermal circuit parameters and the stabilized sequence data into the time sequence combination prediction model, and carrying out calculation to obtain real-time temperature prediction ...

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Номер записи: 1
05-05-2023 дата публикации

Method and device for predicting insulation state of cable

Номер: CN116070302A
Автор: LI XINHAI, CHEN YU, ZHANG ZHIQIANG, CHAN QIZHONG, ZHOU HENG, LIU YONG, HE SONG, DING YAO, HUANG YUANHUI, WANG WEIPING, LI BEI, WU ZHANGHONG, OU RONGJUN, LIU WENPING, YAO GUANGJIU
Принадлежит:

The invention discloses a cable insulation state prediction method and device, and the method comprises the steps: obtaining cable joint structure parameters of a to-be-detected cable and a cable insulation state training sample of a cable database, and carrying out the simulation calculation of the cable insulation state of the to-be-detected cable according to the cable joint structure parameters through a multi-physical field simulation calculation method; calculating cable surface temperature, cable current data and environment temperature of a to-be-detected cable, establishing an insulation state prediction model based on a cable insulation state training sample by adopting a sparrow search algorithm and a kernel extreme learning machine algorithm, inputting the cable surface temperature, the cable current data and the environment temperature into the insulation state prediction model, and predicting the insulation state of the to-be-detected cable. And calculating to obtain insulation ...

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Номер записи: 2
29-08-2023 дата публикации

Electric pile temperature control device suitable for hydrogen-electricity hybrid electric vehicle and control method of electric pile temperature control device

Номер: CN116653584A
Автор: LI XINHAI, CUI WANXIN, ZHANG PEIJIE, SHANG XIANSHANG, ZANG HUITAI, KONG XIANG'AN, SUN AIHUA
Принадлежит:

The invention discloses an electric pile temperature control device suitable for a hydrogen-electricity hybrid electric vehicle and a control method of the electric pile temperature control device, and relates to the technical field of automobile, the electric pile temperature control device comprises an electric pile, a hydrogen internal combustion engine small circulation cooling pipeline and an electric pile cooling system, and the electric pile is used for enabling hydrogen and oxygen to react to generate electric energy and heat; the hydrogen internal combustion engine small circulation cooling pipeline is used for conveying heat generated by the hydrogen internal combustion engine to a water inlet of the electric pile cooling system through cooling liquid; the electric pile cooling system comprises a three-way valve III, a radiator, a three-way valve IV, a three-way valve V, a deionizer, a water pump, a three-way valve II and a three-way valve I, and a water outlet of the electric ...

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Номер записи: 3
26-08-2010 дата публикации

METHOD FOR EXTRACTING VALUABLE METALS FROM LATERITE-NICKEL ORE WITH WHOLE CLOSED-LOOP CIRCULATION OF HYDROCHLORIC ACID

Номер: WO2010094161A1
Автор: LI, Xinhai, GUO, Huajun, HU, Qiyang, WANG, Zhixing, PENG, Wenjie, ZHANG, Yunhe, LI, Xiangqun
Принадлежит:

A method for extracting valuable metals from laterite-nickel ore with whole closed-loop circulation of hydrochloric acid is provided. The method includes the following steps: crushing the laterite-nickel ore, leaching chloride under heating and pressurization, reclaiming iron from the leaching residue, precipitating nickel and cobalt by composite sulfuration precipitator，spray drying the mother liquor and calcining. Leaching reagent is mixed solution of metal chloride and hydrochloric acid.

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Номер записи: 4
28-04-2023 дата публикации

Method for determining internal hot spot temperature of three-core cable and related device

Номер: CN116029100A
Автор: LI XINHAI, ZHANG ZHIQIANG, WANG WEIPING, DENG XIAOLONG, LUO HAIXIN, FU XICHEN, WANG XUEZONG, ZENG LINGCHENG, MENG CHENXU, YANG TING, LIANG GUOJIAN, CHEN QUAN, ZHOU HENG, MEI LONGJUN, CHENG SIJU
Принадлежит:

The invention discloses a three-core cable internal hot-spot temperature determination method and a related device. The method comprises the following steps: acquiring a historical operation information data set of a three-core cable and a corresponding historical internal hot-spot temperature from a preset database set; performing feature extraction on the historical operation information data set by adopting a principal component analysis method and taking the historical internal hot spot temperature as a target to obtain a data set dimension reduction result; introducing a qualitative virtual variable, and determining an analysis variable data set generating influence factors based on a data set dimension reduction result; establishing a multiple linear regression model related to the virtual variable and the analysis variable data set; and acquiring a real-time operation information data set of the three-core cable, and determining the internal hot-spot temperature of the three-core ...

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Номер записи: 5
18-07-2023 дата публикации

Method and device for automatically cleaning umbrella skirts of primary equipment of transformer substation

Номер: CN116441232A
Автор: ZHOU XUEDONG, CHEN QUAN, HUANG WENBIN, HAN BINRONG, XIE ZHENLING, CHEN YU, LI BEI, ZHU YULIN, ZHANG NING, LI XINHAI, CHEN HAOWEN, CHAN QIZHONG, MIAO DONGFEI, LI WEIFENG, ZHANG ZHIFANG
Принадлежит:

The invention relates to the technical field of umbrella skirt cleaning, in particular to a transformer substation primary equipment umbrella skirt automatic cleaning method and a cleaning device.The cleaning method comprises the following steps that S1, a laser scanning module, a cleanliness collecting module and a cleaning module are arranged on the surface of an umbrella skirt; s2, performing laser scanning on the surface of the umbrella skirt by using a laser scanning module to obtain an umbrella skirt surface image; s3, carrying out dirt scanning on the surface of the umbrella skirt by utilizing a cleanliness acquisition module; s4, the surface of the umbrella skirt is cleaned through a cleaning module; s5, carrying out dirt scanning on the cleaned umbrella skirt surface by using the cleanliness acquisition module again; s6, judging whether the treatment smudginess degree of the surface of the umbrella skirt reaches the standard or not, if not, circulating the steps S4-S5 until the ...

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Номер записи: 6
01-08-2023 дата публикации

Pressure release protection device and system for overhigh oil pressure in transformer

Номер: CN116525256A
Автор: HAN YANWEI, JIANG JUNHE, FENG YITONG, LI XINHAI, GUO JIAQING, ZENG LINGCHENG, LIU ZHENHUA, ZHANG YONGTING, ZHANG YONGZHI, LIN YUEDE, LI YAOHUI, SHEN HAOHUA, LIANG WEIJIE, ZHOU HAIYU, TANG XIAOHUI, LUO SHUXIAN
Принадлежит:

The invention provides a pressure release protection device and system for excessive oil pressure in a transformer, and belongs to the technical field of power transformers. The device comprises a two-stage pressure relief valve module installed at the original pressure relief valve installation position of the transformer, the two-stage pressure relief valve module is obtained by connecting two pressure relief valves with completely consistent model parameters in series, one end of the two-stage pressure relief valve module is connected with a pressure relief outlet of the transformer, and the other end of the two-stage pressure relief valve module is connected with an oil guide pipe; the system further comprises a detection control module. When the transformer operates normally, any one pressure relief valve in the two-stage pressure relief valve module is subjected to a pressurization test, the other pressure relief valve keeps working normally, the states of the two pressure relief ...

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Номер записи: 7
29-08-2023 дата публикации

Electrochemical energy storage system of energy storage power station and protection control method

Номер: CN116667411A
Автор: LI XINHAI, MEI LONGJUN, ZENG WEI, GUAN ZHENJIAN, LIU WENPING, DING YAO, WANG ZHENGANG, XU BAOJUN, CHEN WEIMING, LUO HAIXIN, GUO FA'AN, CHEN HAOHE, CHENG SIJU, ZHOU HENG, YUAN TUOLAI, LIN WEI
Принадлежит:

The invention discloses an electrochemical energy storage system of an energy storage power station and a protection control method.The electrochemical energy storage system of the energy storage power station structurally comprises a wire, a plurality of transformers, a plurality of energy storage converters and a plurality of storage battery packs, switching elements are arranged between the bus and the transformer, between the transformer and the energy storage converter, and between the energy storage converter and the storage battery pack; high-voltage side windings of the transformer are respectively connected to different sections of the bus; the alternating current sides of the energy storage converters are connected with a low-voltage side winding of the transformer, and the multiple energy storage converters are connected into the transformer in parallel, so that a multi-equipment segmented parallel wiring structure is realized, flexible and diversified operation modes can be ...

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Номер записи: 8
23-06-2023 дата публикации

Prefabricated cabin top cover, prefabricated cabin and prefabricated cabin type transformer substation

Номер: CN116290929A
Автор: LI XINHAI, WANG ZHENGANG, PAN QING, HOU WEI, LIU DEZHI, LIU WENPING, ZENG WEI, ZHOU HENG, LIANG WEIJIE, ZHANG QINGQING, WANG XIAOQIANG, YAO GUANGJIU, LUO QIFENG, CHEN PING, CAI GENMAN, XIAO YU
Принадлежит:

The invention provides a prefabricated cabin top cover, a prefabricated cabin and a prefabricated cabin type transformer substation. The prefabricated cabin top cover comprises a left track, a right track, a front half top cover, a rear half top cover and a driving mechanism, wherein the left track and the right track are parallel to each other; the front half top cover and the rear half top cover are foldable plates which are formed by hinging grid plates through rotating shafts; the rear side of the front half top cover abuts against the front side of the rear half top cover, and the front side of the front half top cover and the rear side of the rear half top cover are used for being correspondingly hinged to the top ends of the front enclosure wall and the rear enclosure wall of the prefabricated cabin. The rotating shafts comprise the first rotating shaft and the second rotating shaft, rollers are arranged at the two ends of the first rotating shaft, an angle limiting piece is arranged ...

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Номер записи: 9
04-10-2018 дата публикации

ELECTRONIC DEVICE

Номер: WO2018177212A1
Автор: LIN, Quentin, WU, Jason, LI, Ronnie
Принадлежит:

An electronic device (200), comprising a boost inductor (201), an auxiliary winding (202), and an accommodating housing (203). The auxiliary winding is coupled to the boost inductor; the boost inductor and the auxiliary winding are accommodated in the accommodating housing; the auxiliary winding is formed by winding a fusible wire. The electronic device can quickly respond to a short circuit event, so as to avoid rising of temperature in the accommodating housing caused by short circuit of the auxiliary winding, without changing the structure of an existing boost inductor.

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Номер записи: 10
25-08-2023 дата публикации

Fire-fighting control system for battery cabinet of electrochemical energy storage station

Номер: CN116637316A
Автор: LI XINHAI, ZENG WEI, LIU WENPING, HOU WEI, CHENG SIJU, REN YU, MEI LONGJUN, CAI GENMAN, LUO HAIXIN, GUO FA'AN, WANG ZHENGANG, LIAN ZHIBIN, QIU TIANYI, ZHOU HENG, YIN YANHE, XU QIAOMING
Принадлежит:

The invention discloses a fire control system for a battery cabinet of an electrochemical energy storage station, and relates to the technical field of fire safety. According to the fire-fighting control system for the battery cabinet of the electrochemical energy storage station, the battery cabinet is divided into a plurality of independent sub-battery cabins, so that the problem that all battery modules are damaged due to ignition of one battery module when all the battery modules are stacked in the same space is solved; a plurality of combustible gas sensor modules are used for judging whether combustible gas exists in the sub-battery cabins or not, a plurality of smoke sensing probes are used for judging whether smoke exists in the sub-battery cabins or not, the problem of false alarm is avoided, when the combustible gas exists in the sub-battery cabins, a gas abnormity alarm is given out, and when smoke exists in the battery cabins, an alarm is given out. And when short-circuit signals ...

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Номер записи: 11
18-04-2023 дата публикации

Self-electricity-rotating method, device and equipment of feeder line of power distribution network and medium

Номер: CN115986906A
Автор: YUAN YOUXIA, LI XINHAI, LI BEI, LIANG GUOJIAN, ZHANG CHAO, YANG TING, CHEN YU, LI BINGHAO, LIANG JIEHUA, LUO HAIXIN, MEI LONGJUN, LIANG LILI, CHAN QIZHONG, FENG BAO, HE XINXIN
Принадлежит:

The invention discloses a power distribution network feeder line self-rotation power supply method, device and equipment and a medium, and the method comprises the steps: starting a self-rotation power supply function through responding to a position fault signal of a power distribution network feeder line; determining a corresponding position fault according to the position fault signal, and judging whether first waiting time associated with the self-rotation function is equal to preset first time or not; if not, when action signals and protection signals of all section switches of the feeder line of the power distribution network are collected, blocking signals corresponding to the position faults are generated; and executing corresponding rotation electric operation according to the locking signal and the position fault until it is judged that the rotation electric function is executed successfully. The technical problem of low power supply reliability of the power distribution network ...

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Номер записи: 12
12-05-2023 дата публикации

Self-electricity-rotating method, device and equipment of power distribution network line and medium

Номер: CN116111582A
Автор: LI BINGHAO, LI XINHAI, LI BEI, LIANG GUOJIAN, ZHANG CHAO, YANG TING, CHEN YU, LIANG JIEHUA, LIU WENPING, DING YAO, BAO CHENGBIN, WANG WEIPING, MEI LONGJUN, HE XINXIN, ZHANG ZHIQIANG
Принадлежит:

The invention discloses a self-rotation power generation method, device and equipment for a power distribution network line and a medium, and the method comprises the steps: generating a local self-rotation power generation instruction and a centralized control self-rotation power generation instruction when a fault signal fed back by the power distribution network line is received, and carrying out the self-rotation power generation according to the fault signal and the centralized control self-rotation power generation instruction. Selecting a target interconnection switch on the power distribution network line to perform switching-on operation, judging whether the target interconnection switch is switched on or not, when the target interconnection switch is switched on, judging whether the voltage loss side of the target interconnection switch detects voltage or not, and if the voltage is not detected, controlling the target interconnection switch to be switched on according to the on-site ...

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Номер записи: 13
23-06-2023 дата публикации

Electrochemical energy storage station battery liquid heat dissipation device

Номер: CN116315253A
Автор: LI XINHAI, ZENG WEI, YAO GUANGJIU, CHENG SIJU, HOU WEI, DING YAO, LUO HAIXIN, CAI GENMAN, GUO FA'AN, XU BAOJUN, WANG ZHENGANG, YIN YANHE, YUAN TUOLAI, LIU WENPING, ZHOU HENG
Принадлежит:

The invention relates to the technical field of electrochemical energy storage station batteries, in particular to an electrochemical energy storage station battery liquid cooling device which comprises a battery cooling supporting plate, two heat exchange plates, two high-density tooth cooling fins, a liquid pump and a controller. A liquid inlet pipeline, a liquid outlet pipeline and a first temperature sensor are arranged in the battery cooling supporting plate; the two heat exchange plates are respectively arranged on two sides of the battery cooling support plate, cooling pipelines are arranged on the heat exchange plates, two ports of the cooling pipelines are respectively connected with a liquid inlet pipeline and a liquid outlet pipeline, and the cooling pipelines, the liquid inlet pipeline and the liquid outlet pipeline form a cooling loop; the high-density tooth radiating fins are tightly propped against the heat exchange plate; the liquid pump is connected to the cooling loop; ...

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Номер записи: 14
23-09-2010 дата публикации

METHOD FOR EXTRACTING LITHIUM SALT FROM LOW-MAGNESIUM/LITHIUM RATIO BRINE OF SALINE WITH CALCIUM CIRCULATION SOLID-PHASE CONVERSION PROCESS

Номер: WO2010105508A1
Автор: HU, Qiyang, LI, Xinhai, WANG, Zhixing, GUO, Huajun
Принадлежит:

A method for extracting lithium salt from low-magnesium/lithium ratio brine of saline with calcium circulation solid-phase conversion process, comprising the following steps: concentrating brine, removing magnesium by using lime milk, separating calcium by using lithium carbonate, extracting lithium by using sodium carbonate, thermal decomposition of calcium carbonate, and hydrating quicklime into lime milk. The method is based on the solid-phase conversion of anions. The method has the following advantages: high Mg-removal efficiency, good Li-salt purification effect, high Li and Mg recovery, low energy consumption, low cost, closed calcium circulation, less investment, etc.

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Номер записи: 15
04-04-2023 дата публикации

Consignment trolley for circuit breaker hydraulic mechanism

Номер: CN115892290A
Автор: YAO GUANGJIU, YAN CHAO, LI XINHAI, MENG CHENXU, CHEN WEIMING, FANG ZEBIN, HUANG JIAN, ZENG XINXIONG, LIANG QUNFENG, LIN YUEDE, HE XIAOLIU, ZENG LINGCHENG, ZHOU HENG
Принадлежит:

The invention discloses a consignment trolley for a circuit breaker hydraulic mechanism, and the consignment trolley comprises a consignment trolley body, the consignment trolley body comprises a top disc, a middle disc, a chassis and a split type hydraulic jack, the bottom of the chassis is provided with universal wheels, the middle disc is arranged right above the chassis, and the middle disc is rotatably connected with the chassis; a self-rotation power device used for driving the middle disc to rotate is arranged on the chassis, the split type hydraulic jack comprises an oil cylinder and a plurality of pump tops arranged at the top of the middle disc, the pump tops are all connected with the oil cylinder, the top disc is arranged over the middle disc, and the output ends of the pump tops are all connected with the lower surface of the top disc. And a plurality of laser distance measuring sensors are uniformly arranged on the periphery of the chassis. The carrying process is more convenient ...

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Номер записи: 16
05-05-2023 дата публикации

Automatic monitoring control device and method for transformer and transformer respirator

Номер: CN116072405A
Автор: LI XINHAI, ZENG WEI, LIU WENPING, LIANG JINGMING, WANG ZHENGANG, ZHOU HENG, CAI GENMAN, LIAN ZHIBIN, XIAO XING, ZENG XINXIONG, YAO GUANGJIU, WU MIANTING, HOU WEI, LUO QIFENG, MENG CHENXU, YAN CHAO, CHEN WEIMING, XU QIAOMING
Принадлежит:

The embodiment of the invention relates to an automatic monitoring control device and method for a transformer and a transformer respirator, the device is respectively connected with a first transformer respirator and a second transformer respirator, and the automatic monitoring control device comprises a first channel, a second channel, a third channel and a valve automatic switching control mechanism, the automatic valve switching control mechanism comprises a dehumidification exhaust switching assembly and a detection element, the detection element is arranged on the third channel, and the first channel and the second channel are in through connection with the third channel through piston switching. According to the device, the humidity data of the first channel or the second channel is detected through the detection element, and according to the humidity data, water vapor for dehumidifying silica gel particles in the transformer respirator is discharged and the other transformer respirator ...

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Номер записи: 17
25-04-2023 дата публикации

Contact resistance analysis method of cable intermediate joint and related device

Номер: CN116010845A
Автор: LI XINHAI, ZHANG ZHIQIANG, LIANG GUOJIAN, HUANG LEBIN, WANG ZHENGANG, ZHANG ZHIFANG, ZHANG CHEN, MENG CHENXU, CHEN YU, LIANG LILI, MIAO DONGFEI, WU ZHANGHONG, ZHOU HENG, FAN DEHE, ZHU YULIN
Принадлежит:

The invention discloses a contact resistance analysis method of a cable intermediate joint and a related device, and the method comprises the steps: decomposing an original time domain signal into two-dimensional time frequency information through discrete wavelet transform (DWT), improving the performance of a local signal, improving the anti-noise performance of a subsequent prediction model, and still having good anti-noise capability for data with a large fluctuation range; the self-suggestion support vector machine model (SSVM) utilizes a non-iterative method to extract subsequent knowledge from a training stage, that is, knowledge is extracted from a second-class support vector, so that the situation that information obtained from the training stage in a test stage is a first-class support vector or a hyperplane position is avoided, misclassification and mislearning are avoided, and the prediction precision of the contact resistance is improved. Therefore, the technical problem of ...

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Номер записи: 18
09-05-2023 дата публикации

Automatic inspection and maintenance system for cable trench

Номер: CN116086521A
Автор: LUO QIFENG, LI XINHAI, ZHOU HENG, WEN ZHUOFEI, WU MIANTING, LIU WENPING, ZENG WEI, YAO GUANGJIU, WANG ZHENGANG, GAO XIAOLAN, ZHANG SU, CHEN WEIXIONG, ZHOU WENYING, LIU BAOJI, XIONG CHUNLEI
Принадлежит:

The invention discloses an automatic inspection and maintenance system for a cable trench. The automatic inspection and maintenance system comprises a horizontal sliding rail, a fixed bracket, a detection assembly and an energy storage assembly, two ends of the fixed bracket are fixedly connected with two side walls of the cable trench respectively; the horizontal sliding rail is fixed below the fixed bracket; the detection assembly comprises a supporting frame, a sliding motor, a vertical telescopic rod, a connecting ball, a horizontal telescopic rod, a detection ball and an electric connector. The supporting frame is arranged on the horizontal sliding rail in a sliding mode. The sliding motor is arranged on the supporting frame and is in transmission connection with the supporting frame; the second end of the vertical telescopic rod is connected with the connecting ball; a connecting bin is arranged in the connecting ball; a power connection head is arranged in the connection bin; the ...

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Номер записи: 19
25-04-2023 дата публикации

Method and system for predicting long-period dynamic current-carrying capacity of bare cable

Номер: CN116011226A
Автор: LI XINHAI, WANG WEIPING, ZHANG ZHIQIANG, ZHANG CHAO, ZHOU XUEDONG, YANG XIAOYONG, NIU BORUI, YAO GUANGJIU, MENG CHENXU, CHENG SIJU, GUAN WEILIANG, ZHOU HENG, LIU LEI, ZHU YULIN, YANG TING
Принадлежит:

The invention discloses a long-period dynamic current-carrying capacity prediction method and system for an exposed cable, and the method comprises the steps: obtaining the temperature data of a real-time environment where the exposed cable is located, building time sequence models corresponding to a trend term and a season term based on a Prophet model, and carrying out the training, thereby achieving the prediction of the long-period dynamic current-carrying capacity of the exposed cable. The method comprises the following steps: obtaining trained time sequence models corresponding to a trend term and a season term, adding the trained time sequence models corresponding to the trend term and the season term to obtain an environment temperature prediction model, and performing difference processing according to a cable surface measuring point temperature and an environment temperature which are obtained in advance at a future preset moment to obtain an environment temperature prediction ...

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Номер записи: 20
02-05-2023 дата публикации

Lamp

Номер: CN116045243A
Автор: LI LONG, LI XINHAI, YANG RU
Принадлежит:

The invention relates to the technical field of lamp dismounting and mounting, and provides a lamp. In the lamp mounting process, a first protruding piece penetrates through a first receding hole, a second protruding piece penetrates through a second receding hole, and a driving part is driven to rotate so as to drive a first limiting face to rotate to the position under the first protruding piece and drive a second limiting face to rotate to the position under the second protruding piece; the lens is mounted and limited in the mounting cavity; in the dismounting process, the driving part is driven to rotate so as to drive the first receding hole to rotate to the position under the first protruding piece and drive the second receding hole to rotate to the position under the second protruding piece, and the lens is pulled in the vertical direction so that the lens can be separated from the heat dissipation body. In the actual use process, various lenses with different angles need to be replaced ...

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Номер записи: 21
07-04-2023 дата публикации

Power distribution automation terminal protection switching method and device and related equipment

Номер: CN115940102A
Автор: YANG TING, LIANG GUOJIAN, ZHANG CHAO, LI XINHAI, LI BEI, CHEN YU, BAO CHENGBIN, LUO HAIXIN, LIU WENPING, WANG ZHENGANG, HUANG LEBIN, YUAN YOUXIA, WANG WEIPING, CHAN QIZHONG, FENG BAO
Принадлежит:

The invention discloses a power distribution automation terminal protection switching method and device and related equipment. The method comprises the steps that whether a 5G communication module of a power distribution automation terminal is abnormal or not is detected based on TCP heartbeat; if yes, the protection mode is set to be short-time-delay voltage and current protection, and parameters of the short-time-delay voltage and current protection follow a preset first fixed value area; detecting whether the 5G communication module of the power distribution automation terminal returns to normal or not based on TCP heartbeat; if yes, the protection mode is set to be differential protection based on 5G communication and long-time-delay voltage and current type protection, and parameters of the long-time-delay voltage and current type protection follow a preset second fixed value area; wherein the time parameter in the first fixed value area is smaller than or equal to the time parameter ...

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Номер записи: 22
14-07-2023 дата публикации

Multipurpose 10kV switch cabinet transfer trolley

Номер: CN116424407A
Автор: LI XINHAI, LIU WENPING, ZENG WEI, LIANG JINGMING, XIAO XING, WANG ZHENGANG, ZHOU HENG, MENG CHENXU, LUO QIFENG, HOU WEI, LIN WEI, YAO GUANGJIU, YAN CHAO, CHEN WEIXIONG, DING YAO, ZENG LINGCHENG
Принадлежит:

The invention discloses a multi-purpose 10kV switch cabinet transfer trolley. The multi-purpose 10kV switch cabinet transfer trolley comprises a base, a lifting assembly and a tray. Pulleys are arranged at the bottom of the base; the lifting assembly comprises a cross rod frame, a telescopic rod and a cross beam; the two cross rod frames are arranged on the two sides of the base correspondingly. The top and the bottom of the cross rod frame are connected with the tray and the base respectively. An inclined groove is formed in the cross rod frame; a limiting piece is arranged in the chute; the two ends of the cross beam are arranged in the inclined grooves of the two cross rod frames in a sliding mode respectively. The limiting piece is used for limiting sliding of the cross beam when abutting against the cross beam; and the other end of the telescopic rod is connected with the base. By arranging the inclined groove, the cross beam can slide to adjust the slope of the telescopic rod, so ...

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Номер записи: 23
26-05-2023 дата публикации

Multipurpose CT terminal short circuit tool

Номер: CN116169533A
Автор: LI XINHAI, ZENG WEI, QIU TIANYI, FAN DEHE, WANG ZHENGANG, LIU WENPING, LUO HAIXIN, ZHOU HENG, YUAN TUOLAI, ZENG LINGCHENG, XIAO XING, MENG CHENXU, ZENG QINGZHU, LIN WEI, CHEN YU, JIANG QINGKAI
Принадлежит:

The invention discloses a multipurpose CT terminal short-circuit tool which comprises a short-circuit pen, a contact, a clamping seat and a short-circuit bar. The short-circuit pen comprises a rod sleeve and a pen rod; one end of the pen holder is slidably sleeved in the rod sleeve; a first insulating cover is arranged on the pen holder, and a short circuit hole is formed in the pen holder; the contact is detachably arranged at the other end of the pen holder; the clamping seat is made of an elastic material, and a plurality of grooves which are arranged in parallel at intervals are formed in the clamping seat; a plurality of short-circuit contact fingers are arranged on the short-circuit bar, and the short-circuit bar is electrically connected with the grounding lead; the short-circuit contact finger is used for being inserted into the short-circuit hole so that the short-circuit bar can be electrically connected with the short-circuit pen. Wherein the clamping seat can be used for clamping ...

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Номер записи: 24
23-06-2023 дата публикации

Universal verification device and method for split type SF6 density relay

Номер: CN116298855A
Автор: CHEN WEIMING, YAN CHAO, LI XINHAI, MENG CHENXU, ZENG XINXIONG, LIN YUEDE, ZENG LINGCHENG, ZHANG YI, FANG ZEBIN, HUANG JIAN, YAO GUANGJIU, QI MING, HE XIAOLIU, LIANG QUNFENG, LIN WEI, ZHANG PENG
Принадлежит:

The invention discloses a universal verification device and method capable of being used for a split type SF6 density relay. The device comprises an inflation connector, an inflation valve, a verification connector, a verification valve, a four-way pipe, a trace exhaust port and a verification pressure gauge. The other end of the inflation connector is used for being connected with an inflation inlet of the density relay. One end of the verification joint is connected with one end of the verification valve, and the other end is connected with a verification port of the density relay; and four ports of the four-way pipe are respectively connected with the other end of the inflation valve, the verification pressure gauge, the other end of the verification valve and the trace exhaust port. After the device is connected with the density relay, whether the density relay outputs air or not can be controlled through the openable and closable trace exhaust port, so that the operating value and ...

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Номер записи: 25
07-07-2023 дата публикации

Voltage and current type feeder automation fault processing method based on circuit breaker

Номер: CN116404618A
Автор: YANG TING, LI XINHAI, LIANG JIEHUA, LIANG GUOJIAN, LI BEI, CHEN YU, ZHANG CHAO, ZHANG ZHIQIANG, WANG ZHENGANG, CHENG SIJU, BAO CHENGBIN, HUANG LEBIN, ZHU YULIN, LUO HAIXIN, FENG BAO, CHEN QUAN, LIN WENHAO
Принадлежит:

The invention relates to the technical field of power grid fault processing, and discloses a voltage and current type feeder automation fault processing method based on a circuit breaker, and the method can reduce the operation times of an outgoing line switch through the tripping and reclosing of a first-stage switch of a large branch line when the large branch line has a fault, and enables the users affected by power failure not to be the users of the whole line any more. And the power failure range is effectively reduced for users on a large branch line, and when a fault occurs in the branch line, the first-stage switch of the branch line trips and coincides, so that the power failure range is further reduced. Due to the fact that the first-stage switch of the large branch line is provided with overcurrent protection instead of no-voltage protection, the series connection stage number of the voltage type switches on the line is reduced, the fault isolation accuracy of distribution network ...

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Номер записи: 26
18-04-2023 дата публикации

Current-carrying capacity prediction method of cable intermediate joint based on VARMAX model

Номер: CN115980479A
Автор: CHEN YU, LI XINHAI, ZHANG ZHIQIANG, LUO HAIXIN, ZENG LINGCHENG, FU XICHEN, HE SONG, YANG TING, YANG JINSONG, DENG XIAOLONG, ZHAN YINGHUA, ZHOU HENG, LIU LEI, MEI LONGJUN, CHENG SIJU
Принадлежит:

The invention relates to the technical field of current-carrying capacity of power cables, and discloses a current-carrying capacity prediction method for a cable intermediate joint based on a VARMAX model, and the method comprises the steps: collecting temperature rise data of the cable intermediate joint in a cable trench under each working condition and corresponding load change data, and constructing a temperature rise data set; the method comprises the following steps: acquiring a temperature rise data set, classifying the temperature rise data set according to different working conditions, constructing a temperature rise-load response model set according to a mapping relation between temperature rise data in each sub-data set and corresponding load change data, training the temperature rise-load response model set based on a VARMAX model, and constructing a VARMAX temperature rise prediction model. And inputting the load change data at the future moment into the VARMAX temperature ...

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Номер записи: 27
12-05-2023 дата публикации

Electromagnetic load switch simulation test device

Номер: CN116106734A
Автор: BAO CHENGBIN, LIANG GUOJIAN, HE XINXIN, LI XINHAI, CHEN YU, ZHANG CHAO, YANG TING, HUANG LEBIN, YUAN YOUXIA, LIU WENPING, DING YAO, LI BEI, LI BINGHAO, LIANG JIEHUA, ZHOU XUEDONG, LIANG LILI, JIANG QINGKAI, MA HAOCHENG, HU XIAOMAN
Принадлежит:

The invention discloses a simulation test device for an electromagnetic load switch. The simulation test device comprises an electric closing module, a fault current holding module, a mechanical closing module, a switch position acquisition module and an I/O control module for uploading closing position remote signaling of a closing device, the input end of the electric closing module is connected to a mains supply alternating current power supply, and the output end is connected to the input end of the switch position acquisition module; the input end of the fault current holding module is connected to a three-phase current, and the output end is connected to the input end of the switch position acquisition module; the mechanical closing module, the electric closing module and the fault current holding module enable the switch position acquisition module in an OR logic relation; and the output end of the switch position acquisition module is connected to the I/O control module. The device ...

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Номер записи: 28
18-08-2023 дата публикации

Method for reducing manganese dissolution rate of lithium manganate positive electrode material, positive electrode material and battery

Номер: CN116613276A
Автор: WANG ZHIXING, HAN LANGGANG, GUO HUAJUN, ZHANG ZHIPING, LI XINHAI, YAN GUOCHUN, WANG JIEXI, PENG WENJIE, GAO XUGUANG, XU NING, TAN YIWEI
Принадлежит:

The invention discloses a method for reducing the dissolution rate of manganese in a lithium manganate positive electrode material, which comprises the following steps: stirring and mixing lithium manganate positive electrode material powder and an alkaline hydroxide solution, standing, and removing moisture. The alkaline hydroxide is mixed in the lithium manganate positive electrode material powder, so that HF generated by electrolyte can be neutralized, the disproportionation reaction of Mn < 3 + > is inhibited, the manganese dissolution rate of lithium manganate is reduced, and the problem of poor high-temperature cycle performance of spinel lithium manganate is solved from the source. The lithium manganate positive electrode material powder is soaked in the alkaline hydroxide solution, the alkaline hydroxide is uniformly mixed into the lithium manganate positive electrode material powder, the operation is simple, the energy consumption is low, and the cost is low. The invention also ...

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Номер записи: 29
25-04-2023 дата публикации

Fire protection method, device and equipment for electrochemical energy storage system

Номер: CN116013049A
Автор: LI XINHAI, GUO FA'AN, LIAN ZHIBIN, MEI LONGJUN, GUAN ZHENJIAN, LUO HAIXIN, LIN XIONGFENG, ZENG LINGCHENG, ZENG WEI, WANG ZHENGANG, YAO GUANGJIU, ZHOU HENG, HOU WEI, YIN YANHE, XU BAOJUN
Принадлежит:

The invention discloses a fire protection method, device and equipment for an electrochemical energy storage system, and the method comprises the steps: responding to a received protection request, and collecting a plurality of groups of monitoring data of the electrochemical energy storage system through a comprehensive monitoring module; corresponding early warning strategies are selected for polling according to each group of monitoring data, and a plurality of polling results are generated; all polling results are responded, corresponding reminding operation is executed through an audible and visual alarm, and whether protection operation is executed or not is determined; and if the execution is determined, the protection operation is executed through the deflation no-entry indicator lamp and the fire suppression module. In the whole fire protection process of the electrochemical energy storage system, multi-dimensional judgment is carried out through multi-parameter coupling, and the ...

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Номер записи: 30
23-05-2023 дата публикации

Dust fall drilling system and method for highway construction

Номер: CN116146127A
Автор: DONG TING, LI WEI, LI XINHAI, LI HONGSHAN, LIANG GUOLIN
Принадлежит:

The invention discloses a dust fall drilling system and method for highway construction, the dust fall drilling system comprises a shell and a drill bit, the interior of the shell is fixedly connected with a mounting plate, and the lower side of a high-pressure water tank is provided with a cleaning mechanism for cleaning the drill bit; a collecting assembly for collecting stone is arranged on the lower side of the interior of the shell. According to the device, a cleaning mechanism is arranged to clean a drill bit, a second rotating wheel drives a rotating plate and a matching disc to rotate through a driving shaft, the rotating plate controls an intermittent wheel to intermittently rotate under the action of a driving block and a driving groove, and the inner wall of the shell is cleaned through a cleaning assembly; compared with an existing device, the device has the advantages that dust pollution caused by flying of a large amount of dust can be prevented, the drilling effect can be ...

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Номер записи: 31
05-05-2023 дата публикации

Temperature field calculation method and device, electronic equipment and storage medium

Номер: CN116070442A
Автор: LI XINHAI, ZHANG ZHIQIANG, ZENG LINGCHENG, ZHOU HENG, DING YAO, FENG ZHENLIANG, NIU BORUI, WANG WEIPING, YANG JINSONG, CHAN QIZHONG, LIANG GUOJIAN, LIN WENHAO, LIANG ZHIKANG, LIANG LILI, DENG XIAOLONG
Принадлежит:

The invention discloses a temperature field calculation method and device, electronic equipment and a storage medium, and the method comprises the steps: obtaining the structure parameter and the environment temperature of a to-be-measured cable terminal, building a cable terminal simulation model according to the structure parameter and the environment temperature, dividing the cable terminal simulation model through a free division mode, and obtaining the temperature field of the to-be-measured cable terminal. Obtaining a subdivided cable terminal simulation model, establishing a temperature field order reduction model by adopting a nonlinear modal order reduction method based on the subdivided cable terminal simulation model in combination with a preset boundary condition, and inputting the structure parameters and the environment temperature into the temperature field order reduction model to obtain the temperature field simulation model. And calculating to obtain temperature field ...

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Номер записи: 32
25-04-2023 дата публикации

Multi-dimensional correlation three-core cable dynamic current-carrying capacity prediction method and system

Номер: CN116008706A
Автор: ZHANG ZHIQIANG, LI XINHAI, MENG CHENXU, ZENG LINGCHENG, YANG TING, LIU YONG, NIU BORUI, DENG XIAOLONG, CHEN YU, LUO HAIXIN, CHEN QUAN, YANG XIAOYONG, ZHOU HENG, YAO GUANGJIU, LIU WENPING
Принадлежит:

The invention relates to the technical field of power cable current-carrying capacity, and discloses a multi-dimensional correlation three-core cable dynamic current-carrying capacity prediction method and system, and the method comprises the steps: obtaining cable temperatures of a three-core cable under different laying environment conditions and corresponding cable loads; fitting a cable temperature-load change sequence set obtained after classification, calculating a characteristic value of the cable temperature, optimizing network parameters of a GRNN generalized regression neural network by adopting an artificial bee colony algorithm, and performing iterative training by taking the characteristic value of the cable temperature as an input quantity and taking the cable load corresponding to the temperature data as an output quantity to obtain a cable temperature-load change sequence set; inputting the cable temperature measured at the future moment into the trained GRNN generalized ...

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Номер записи: 33
02-05-2023 дата публикации

Cyclic amine functional electrolyte additive, electrolyte and lithium ion battery

Номер: CN116053583A
Автор: YAN GUOCHUN, ZHENG TINGTING, WANG JIEXI, WANG ZHIXING, GUO HUAJUN, LI XINHAI, PENG WENJIE
Принадлежит:

The invention provides a cyclic amine functional electrolyte additive, an electrolyte and a lithium ion battery, and the electrolyte additive is any one or more of 1, 4-dimethyl piperazine, 1, 4-diethyl piperazine, triethylene diamine, hexamethylenetetramine, N, N, 4-trimethylpiperazine-1-ethylamine or hexamethylhexene. The cyclic amine functional additive provided by the invention has good electrochemical stability and thermal stability, has strong complexing ability with metal ions, can stably dissolve transition metal ions in the electrolyte, and also can actively reduce the content of hydrofluoric acid and free radicals in the electrolyte. When the functional additive is applied to the lithium ion battery, the charging and discharging coulombic efficiency and the high-temperature performance of the lithium ion battery, especially the lithium ion battery made of a manganese-based positive electrode material, can be obviously improved.

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Номер записи: 34
18-08-2023 дата публикации

HMB-4 type hydraulic spring mechanism dismounting and mounting device

Номер: CN116604513A
Автор: YAO GUANGJIU, YAN CHAO, LI XINHAI, MENG CHENXU, CHEN WEIMING, FANG ZEBIN, HUANG JIAN, ZENG XINXIONG, LIANG QUNFENG, LIN YUEDE, ZENG LINGCHENG, ZHOU HENG
Принадлежит:

The invention relates to the technical field of tank type circuit breakers, in particular to an HMB-4 type hydraulic spring mechanism disassembling and assembling device which comprises a guide rail assembly, a sliding assembly, a lifting assembly and a rotating assembly. The guide rail assembly comprises a first support, a second support, a first guide rail and a second guide rail. The sliding assembly comprises a third support, a first sliding piece and a second sliding piece. The lifting assembly comprises a fourth support and a driving part. The rotating assembly comprises a connecting piece, a rotating supporting piece and a rotating piece. The HMB-4 type hydraulic spring mechanism is lifted through the driving piece, the HMB-4 type hydraulic spring mechanism is limited through the connecting piece, shaking in the pulling process is avoided, accurate control over the lifting height can be achieved, time and labor are saved in the dismounting and mounting process, and the replacement ...

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Номер записи: 35
07-04-2023 дата публикации

Si-coated SiOx composite material and preparation method and application thereof

Номер: CN115939354A
Автор: WANG ZHIXING, XU KAI, GUO HUAJUN, YAN GUOCHUN, WANG JIEXI, LI XINHAI, PENG WENJIE
Принадлежит:

The invention provides a Si-coated SiOx composite material as well as a preparation method and application thereof, and belongs to the technical field of lithium ion battery materials. The Si-coated SiOx composite material comprises an inner core and a shell wrapping the surface of the inner core, the inner core is crystal nano silicon; and the shell is made of amorphous SiOx and a hydrate of the amorphous SiOx, namely SiOx.yH2O. Nano silicon is fully dispersed in a mixed solution of deionized water and absolute ethyl alcohol, the obtained solution is added into a high-pressure reaction kettle after being subjected to ultrasonic stirring and uniform mixing, then the high-pressure reaction kettle is put into a blast drying oven, and the components and thickness of a coating layer are controlled by regulating and controlling the reaction temperature and time. The coating layer generated at a relatively low temperature obviously improves the cycle performance of the nano silicon, and on the ...

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Номер записи: 36
02-05-2023 дата публикации

Cable core temperature prediction method and system based on VMD-LSSVM

Номер: CN116050276A
Автор: LI XINHAI, ZHANG ZHIQIANG, MENG CHENXU, CHEN YINGJIE, ZENG WEI, YANG XIAOYONG, HE SONG, FAN DEHE, ZENG LINGCHENG, CHEN YU, LIANG GUOJIAN, ZHANG NING, ZHOU HENG, ZHANG CHAO, YANG TING
Принадлежит:

The invention provides a VMD-LSSVM-based directly-buried three-core cable core temperature prediction method and system, and the method comprises the steps: building a VMD-LSSVM-based cable core temperature prediction model through employing the historical temperature rise data and cable core temperature data of a three-core cable; and collecting current temperature rise data of the three-core cable, and obtaining the predicted temperature of the cable core of the three-core cable through the cable core temperature prediction model. Wherein the variational mode decomposition is higher in noise processing capability, namely anti-interference capability. The least square support vector machine converts solving of a quadratic programming problem into a linear equation set problem, so that the calculation complexity is greatly reduced, and the calculation speed is improved. According to the method, the cable core temperature of the three-core cable is predicted by comprehensively applying the ...

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Номер записи: 37
14-07-2023 дата публикации

Charger and power distribution method and power distribution device thereof

Номер: CN116424142A
Автор: CAI WEI, LU TIANCI, LIU XIAOWEI, FANG CHENGLIN, ZHOU BIN, DOO HWA-JUN, CHEN KA, LI XINHAI, NIU BIN, YE QUANHAI
Принадлежит:

The invention relates to a charger and a power distribution method and device thereof. The method comprises the following steps: determining required power and required current of a vehicle to be charged; the rated power and the maximum current of each charging module in the charger are determined; calculating the number of modules needing to be charged based on the required power and the rated power or the required current and the maximum current; selecting required charging modules in the charger based on a preset selection principle, and combining the selected charging modules to obtain a combined charging module; and calling the combined charging module to charge the to-be-charged vehicle. According to the invention, the number of the required charging modules is determined in advance, and then the required charging modules are selected from the charger based on the preset selection principle, so that the problem of charging power redundancy caused by unreasonable charging power distribution ...

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Номер записи: 38
04-07-2023 дата публикации

Intelligent design gene BT3AES and application thereof

Номер: CN116376944A
Автор: LI XINHAI, WENG JIANFENG, WANG YUNPENG, SONG XINYUAN
Принадлежит:

The invention provides an intelligent design gene BT3AES and application thereof, and belongs to the technical field of genetic engineering and biological intelligence, and the nucleotide sequence of the gene BT3AES is shown as SEQ ID No.1. According to the invention, natural proteins Cry8Ea, Sip1Aa and Cry3Aa which have toxicity to coleopteran pests are intelligently designed, and a gene library of random permutation and combination is constructed, so that the gene BT3AES can be used for detecting coleopteran pests. The optimal insecticidal gene BT3AES is obtained through screening and identification, and the three proteins can be expressed in tissue cells of corn leaves, root systems and the like. The gene has a remarkable insecticidal effect on coleoptera pests such as diplodia juncea and the like, and the co-expressed multi-protein gene has a better insecticidal effect compared with any natural protein, so that the purpose of synergistic interaction is achieved.

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Номер записи: 39
08-08-2023 дата публикации

Loop resistance test connector of 10kV vacuum circuit breaker

Номер: CN116559645A
Автор: ZHU YULIN, CHEN QUAN, ZHOU XUEDONG, LIANG ZHIKANG, LIANG GUOJIAN, LI XINHAI, CHEN HAOWEN, CHEN YU, MIAO DONGFEI, LIU JUNYU, FENG BAO, LI WEIFENG, HAN BINRONG, ZHANG ZHIQIANG, CHAN QIZHONG
Принадлежит:

The invention discloses a loop resistance test connector of a 10kV vacuum circuit breaker, a voltage contact and a current contact of the loop resistance test connector provided by the invention adopt a pair of long arc cylinder contacts in a bivalve symmetrical relation, the long arc cylinder contacts are connected through a sliding buckle, a supporting shaft, a supporting framework and a supporting shaft fixer, and the supporting shaft fixer is arranged at a root handle part; the two supporting skeletons are arranged in parallel and are connected with the supporting shaft, the sliding buckle is movably connected with the supporting shaft, the sliding buckle is connected with one ends of the two supporting skeletons to form a supporting part of an umbrella-shaped skeleton structure, and the other ends of the supporting skeletons are respectively connected with the current contact and the voltage contact. The sliding buckle is controlled to slide through the supporting part driving assembly ...

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Номер записи: 40
25-04-2023 дата публикации

Intelligent environment monitoring system and method for high-voltage chamber of transformer substation

Номер: CN116007675A
Автор: LI XINHAI, LUO QIFENG, WEN ZHUOFEI, WU MIANTING, ZHOU HENG, WANG ZHENGANG, LIU WENPING, ZENG WEI, YAO GUANGJIU, GAO XIAOLAN, XIONG CHUNLEI, LI MENGQI, HUANG WEIHAO, ZENG QINGZHU, HOU WEI
Принадлежит:

The invention discloses an intelligent environment monitoring system and method for a high-voltage chamber of a transformer substation. The system comprises a supporting assembly and a monitoring assembly. The supporting assembly comprises a high-voltage chamber and a chamber door. A mounting cavity is formed in the high-pressure chamber; the chamber door is arranged on the high-voltage chamber in a turnover manner; the monitoring assembly comprises a concentric-square-shaped pipe, a hose, a monitoring box, a humidity sensor, an air pump, a heating wire and a controller. The concentric-square-shaped pipe is arranged on the inner circumference of the first concentric-square-shaped plate, and a first electromagnetic valve communicating with the interior of the concentric-square-shaped pipe is arranged on the concentric-square-shaped pipe; the hose is arranged in the mounting cavity, and a second electromagnetic valve communicated with the inside of the hose is arranged on the hose; the monitoring ...

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Номер записи: 41
12-05-2023 дата публикации

Contact resistance analysis method of single-core cable joint and related device

Номер: CN116108741A
Автор: ZHANG ZHIQIANG, LI XINHAI, CHEN YU, MENG CHENXU, LIANG LILI, FENG BAO, HOU AOGANG, HUANG LEBIN, YANG JINSONG, WANG ZHENGANG, MIAO DONGFEI, FENG ZHENLIANG, ZHOU HENG, LUO HAIXIN, ZENG WEI
Принадлежит:

The invention discloses a contact resistance analysis method of a single-core cable joint and a related device. A single-core cable joint contact resistance sensing mode is expanded and improved, a cable contact resistance inversion sensing model is developed based on an SVM (Support Vector Machine) algorithm, inversion model parameters are optimized by using a BA (Bat) algorithm, and the accuracy of model inversion is improved. According to the method, the surface hot spot temperature of the single-core cable joint monitored in real time on an actual site is utilized to perform interval rapid judgment on the contact resistance of the cable joint, so that the sensing process and flow of the contact resistance of the single-core cable joint on the industrial site are greatly simplified, and serious missed judgment or misjudgment of the thermal fault of the single-core cable joint during industrial application is reduced. Therefore, the technical problem that online monitoring cannot be realized ...

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Номер записи: 42